I think she was not alone just had more than one round and she offed him cause he was there. my training = only one round until you are truly on your own. and i’m not around. The individual holding the firearm needs to understand the destructiveness of a firearm and how it operates. one round, two, three, etc on their own after initial training. an automatic even more so. and i have never fired a fully auto anything so i only make my comments on reactions i have seen with grown men on the first time firing a semi auto or even revolver. in the wrong hands semi might be bad enough. And i’m not a professional trainer but these were my friends who wanted to shoot my guns and that was my approach based on how i was trained. i wouldn’t give anyone a full auto under those circumstances until i was well out of the parking lot. It’s only fun until someone has an eye out.
There was the case a couple of years ago in Connecticut of a father who took his 12 year old son to firing range that featured Uzis. The instructor must have been piss-poor in setting it up because the kid fired on full auto and it went back on him and he caught a round in the head.